CPU vs GPU Architecture
CPU vs GPU Architecture Why GPUs exist For decades, single-thread CPU performance improved “for free” — you write the same sequential code, and it runs faster on the next generation of chips, because clock speeds kept climbing. Around the mid-2000s, that stopped. Clock speeds hit a power wall — you can’t keep cranking frequency without the chip melting. So the industry pivoted from “make one core faster” to “put more cores on the chip.” This is the multicore/manycore shift, and it’s the reason parallel programming stopped being a niche HPC skill and became something every programmer eventually runs into. ...